R2-D2 was the droid that never died, capable of producing any needed device out of his trash-recepticle shaped body. He served nearly everyone in the galaxy, and was essentially responsible for everything in the galaxy, because if he hadn't fixed that Nabooboo royal yacht, everything would have gone according to plan, and all that Clone Wars mess and Galactic Empire stuff might never had happened. Luke and Leia would have never been born to save the galaxy either, because Padmé Amidala, Qui-Gon Jinn, and Obi-Wan Kenobi would not have landed on Tatooine to find that squirt Anakin Skywalker, bet on a race, and freed him from slavery. They would, in fact, have all been dead! Then Palpatine would be wondering what the kriff was he going to do next?

But since all of that did happen, R2 was eventually in the service of Luke Skywalker and Mara Jade. He watched them do "it" every night and eventually when they finally managed to do it right, they had a son and were forced to move to a bigger house. Luke said he would move all the stuff himself and that he didn't need any help, but as usual, Luke ended up whining a lot and doing nothing. Luke then had a brilliant idea, he told R2 to move all the stuff to the new house while he sat there, watched R2 move all the stuff and kept telling him he could have done it a lot better himself.

Holographic album of Anakin failing his Jedi potty training (Seen by every Jedi and became the laughing stock at the Jedi Temple. He got very pissed and wanted revenge. This was the real start of Order 66)